4XCX

METHYLTRANSFERASE DOMAIN OF SMALL RNA 2'-O-METHYLTRANSFERASE

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	APS BEAMLINE 19-ID
Synchrotron site	APS
Beamline	19-ID
Temperature [K]	100
Detector technology	CCD
Collection date	2014-07-07
Detector	ADSC QUANTUM 315r
Wavelength(s)	0.97918
Spacegroup name	P 63 2 2
Unit cell lengths	166.025, 166.025, 74.478
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	33.980 - 2.840
R-factor	0.2263
Rwork	0.225
R-free	0.24910
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	3jwg
RMSD bond length	0.008
RMSD bond angle	0.960
Data reduction software	HKL-3000
Data scaling software	HKL-3000
Phasing software	BALBES
Refinement software	BUSTER-TNT (BUSTER 2.10.0)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	35.000	35.000	2.940
High resolution limit [Å]	2.840	6.110	2.840
Rmerge	0.098	0.039	0.731
Rmeas	0.103	0.040	0.763
Rpim	0.028	0.011	0.209
Total number of observations	180091
Number of reflections	14604
<I/σ(I)>	24.25		2.08
Completeness [%]	98.4	97	95.7
Redundancy	12.3	11.5	11.7
CC(1/2)		0.999	0.882

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	8.6	293	2.4 M NACL, 0.1 M TRIS-HCL, PH 8.6,4% 1,3-PROPANEDIOL